A paradoxical situation occurs in poetic discourse: to represent silence, "silent music" (internal feelings and sensations), it is necessariy to have recourse to a writing that, unlike other kinds of discourse, acts as a musical notation, as a material support of the "significant". Thus poetic writing, precisely due to its nature of writing, does not contain real sounds, melodies or rithms, which are part of actual oral sequence, but only the acoustic images that corresponde to distinctive segments. The persistence of phonetic dimension maintains poetry as an occurrence that, in spite of the scriptural support, conserves its audible virtuality, so that the reader "hears in his mind, behind the written words shape, the words of the text, its verbal music" (O. Paz)